Caliper-gage.



M. BERTHOLD.

CAMPER GAGE,

APPLICATION YILED AUG.8,19H

1,127,955. Patented Feb. 9, 1915.

Wane mm E BERT HOLD I We,

': results.

UNITED STATES P E OFFICE.

Mani BEBTHOLD, or omixioneon cameraman.

Specification of Letters mum.

Patented Feb. 9, 1915'.

Application filedAug nst 8,1914. Serial-No. 855,889.

To all whom it ma i concern: I V

- Be it k'nown that I, .lVIABT Bnn'rrroLD, a. citizenof the United'States, -.res'1d ing at Olex, in the county of Gilliam 'and State 0i 3 Oregon, have invented certainnew and useful Improvementsin Caliper Gages, of which the following-is aspecification', reference being had to the accompanying draw-- ings. I v

My invention relates to certain new and useful improvements in caliper gages espe cially designed for use ill'babblbtll'ig x203191 5 of all kinds of jou-rnals. H g

It has for its object to provide an instrument which, while being simple in construction, yet shall befabsolutely reliable asi to With these ends inview my invention consists in the details of construction'and arrangement hereinafter more particularly -1ilesci ibed; V

'.'In order that those skilled inthe art to which my invention appertains may know by numerals to the accompanying drawing "how to make anduse-my improved age, I willnroceed todescribe the sanie re erring .in which-I Figurel is a side elevation, the circle in broken lines indicating a journal, and Fig.

- 2 is a detail section taken onftheline a-a fractions thereof, it being of course. under-- I stood that any other imit of measure thanof Fig; 1. Similar reference numerals indicate like parts iniboth figures of the drawing' posite one another and each *is provided with a vertical threaded stem 6, adapted. to

receive nuts 7, and 8. -Slidably mounted' on the lateral-projections and in the dove' [tail grooves 3 of the feet are twocalip'er gages 9 formed with longitudinal dove tails 10, as clearly shown in' Fig. 2f" 11 is a third caliper-gage slidably mounted in the enlargement 4 and graduated in inches or inches'm'ay be employed; Set screws 12 are .provided for securing the several caliper It-will b noted that the two gages aredm 1 is a true semicircular metallic body gages. 92 9. and 11 in any adjusted position.

posed in exact alinement with each other and that the vertical gage 11, if termed f withinchgraduations and with graduatioiiis' showing fractions of an inch, is disposed at right angles to the horizontal gages 9 and at a point equi-distant between the feet 2.

Mounted at its ends upon the screw threaded stems 6 is a. level 13 which may be aocurately adjusted by 'meansiof the nuts 7 and. 8 in an obvious manner;-

- the construction ijigho d scribed it. willbe readily iiinderstood that the level and the three gages may be easily.

-r emoved from the semicircular body 1 and with equal facility reassembled, and that when not in use and it is desired to reduceit to smaller compassand' at the sauna time protect the knife edgetermini of the gages, the said. calipers may be brought together as'shown in broken lines. at Fig. 1 andfs e locality with 'a gage mark 14 and allot the .cured in such relation by the set screws-12;. The feet 2 are each provided at a definite calipers are provided withthe necessary?I- graduations 15. The caliper blades mayofcourse be graduated in inches; or fractions of inches, or any other suitable unit off measure may be used, The approaching 01::

inner ends of the calipers terminate in knife 1 '1 edges 16 as clearly shownlin Fig. "1, while the outer extremities are fashioned at l'Zto constitute a convenient means for adjlisting;

them within their guiding su ports 2'. ,1 By reference to Fig. l'it wil be seen that a 1 if the gages9 and 11 are so di' osed that like graduation marks on each'bla e coincide;

with the indices 14 and 18, then the'lmife edges of the three blades will intersect the circumference of the circle ar dthe, center of.

which will be on a line connecting the gages, 9 and intersected by a median line projected from the gage 11. The calipers may therefore be used in the manner of ordinzi ry calipers. to determine if the surface of a cylindrical body is true,and; the calipers may of course be turned around the-cylin- Y a dricalbody for this purpose. 'In addition to the ordinary use, however, my improved calipers are particularly adapted-for level:

ing and babbitting journal boxes of all kinds. 1 U 1 Assuming now that the cylindrical-body:

described by broken lines in Fig. 1 is a shaft 7 resting in the lower sectiontof a journal box and that the gages 9 rest upon theu'pper; face of this journal box, it will'be obvious,

that by setting the gages as shown in Fig,-

is lifted and leveled by means of the level 13. 4 Thumb screw 12 is then loosened and the top gage 11 is moved dowhward untilthe g'radu ation one and one-half is' disposed opposite to the index (assumingjhatdhe shaft is three inches in diameter). If it is required to put a one quar'ter inch liner between the and lower sections of the box, then the top gage is raised one-eighth of an inch above the center line of the'shaft. The top gage will then show one and-five-eighths 1 inches; the shaft is then raised up in the box until it comes in contact with'the gage.

to The shaft is thus disposed oneeeightli of an inch above the center line. One-quartiinch liners are then disposed lmtween thedowen half and the top half of the journal box, and vthe position of thesha'ft has been accurately gaged It is obvious that the 1gtage may alsobe' used for leveling the sha as well as accurately locating the shaft.

' able the device is-'-also capable of use in V It will be'noted that becausethe blade 11 and the blades 9 are independently ad3ust measuring irregular forms, thoughit is spe- 1 cifically adapted to the purpose which has alreadybeen pointed ou't,for the reason that the under sides of the blades 9 are disposed in the same plane and are flat, so that they may beset flat down upon the lower member p of a journal bearing and thus disposed in oppositely disposed blades slid bly mounte correct position with relation to the bearing, and'with the blade 11 disposed in a plane a exactly at right angles to the plane of the under faces of the blades 9. r

What I claim as new and'desire to secure by Letters Patent is: Y

1. A caliper gage-comprisinga body hav ing feet spaced rom each otherand disposed in the same plane, and a middle portion arching over the space between the feet,

upon the feetand independentlyshiftable toward or from each otheigithe outer faces 0f said blades being disposed in the same plane and in ai plane at right angles to the plane of the midfdle portion of the body, and

a blade'dis ,ose'd at rightranglesto the first named ble es and mounted upon the middle of the" body, said-blade being independently first named blades 2. A caliper-gage comprising a: body haying feet disposed in spaced'relationand 1n the same plane, the "faces of said feet being each formed-with a dove-tailed groove, a

the dove-tailed groove on the faces of said" feet, a bladepassing through said perfora- 1301141116. independently adjustable toward or from the plane of the first named gage blades, and means'for holding each of said blades in its adjusted position.

3. A caliper gage including a body having feet disposed in the same plane, a middle portion arched over the space between the feet, oppositely di osed ga e blades mounted upon the outer aces of te feet and having their under faces disposed in the same plane, and at right anglesto 'the lane of the-middle portion of the-body, an a gage blade disposed at right an les to the plane of the underfaces of the rst named gage bladesendadjustabl .nwunted upon and shiftable toward or cm the plane of the first named gage blades. w

4. A caliper gage comprising an arcuate body, the extremities of which are formed with outwardlyturnednfeet disposed in a piano at right angles-to the plane of the y, the under; faces of the -feet being formed with dove-tailed grooves, oppositely disposed f gage blades slidably mounted in said grooves Of-the-fet and independently shiftable-toward or from each other, means "on the feet for holding the gage blades set in adjusted position, a gage blade at right angles to the firs'tnar'ned gage blades and disposed midway between the feet and ad ustable toward or from the plane of the first named gage blades, ,means for holding the second named blade in its adjusted position, a level.- extending parallel to thefirst named gage blades, and neanslio-fifiupport ing the extremities of the level upon the arcuate body and for adju'stingthe. level.

5. A caliper ga' comprising a supporting body, a;npaii o oppositely disposed gage bladesg the outer faces of said gage blades. being fiat and disposed in the same plane,

the top of said gage blades beingv disposed entirely below the adjacent ortion' of the end face of the body, a gage lade disposed at right. angles to thefirst named blades, on

a line midway between them, all of said blades being adjustable toward or from a common point, and a level mounted "upon said supporting body.

In testimony whereof l: hereunto ailix iny shi' ftable toward and fromthe plane of the signature in thepresence of two witnesses.

, MART'BERTHOLD. Witnesses: a C. F. Wane, 

